It was in the factory （ ） you worked five years ago （ ） you learned the technique.

It’s vital that enough money_____collected to get the project started.

The doctor said that mental （ ） is the major cause of his sleeping problem.

Fresh air, enough exercise and nutritious food （ ） to good health.

We mention the importance of giving up smoking once and again, but hardly ______ it.

Most Chinese like tea, but some prefer coffee _____tea.

When he awoke， he found himself _____ after by an old woman.

Air pollution is obviously one of the major _____ of city life.

（ ） , we will review all the lessons before the final exam.

It was suggested that （ ） big event like the Year of Russia in China should certainly benefit （ ） relationship between the two countries.

She is very （ ） to his ugly appearance.

The committee is expected to_____a decision this evening.